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Forum Discussion
BTRFS scrub speed is insanely slow.
So I have a RN104, with about 10TB of disk space. When I set it to do a BTRFS scrub, the speed is horrific. I'm getting something like 30GB/hour of scrub speed. At the present rate, it would take ...
ReadyNAS 104 4 3TB WD 5400 disks
6.7.5
x-raid
Tahiti16 wrote:
ReadyNAS 104 4 3TB WD 5400 disks
6.7.5
x-raid
It shouldn't be taking more than ~32 hours to resync.
Have you checked the health on the drives?
Health is good 2 of the drives are brand new, replaced 360GB drives. I understood the recovery and rebalance taking time but this is ridiculous.
Well, as I said it shouldn't take more than about 32 hours.
I agree it shouldn't, the recover and rebalance when I swapped in the 3TB drives, one at a time, was done in less than 32 hours. More like 28, and the system is much quicker for everything now with matched drives, except scrub which got even more pitiful. As I type it is at 15.4% after 5 and half days! Pretty much makes the tool useless. Especially when yo addin the impact on the overall performance of the system.
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